Evaluation of Allelopathic Effects of Iranian Rice Cultivars (Oryza sativa L.) on Growth Factors of Barnyard Grass (Echinochloa cruss-galli L.)
نویسندگان
چکیده
منابع مشابه
evaluation of herbicide application and seeding rate on competition between rice (oriza sativa l.) and barnyard-grass (echinochloa crus-galli(
in this experiment which was conducted at a field of ramin agriculture and natural resources university (khouzestan, iran) in 2005, the effect of molinate at 0 (weedy check), 2.16, 3.6 and 5 kg/ha and seeding rate of 100, 120 and 140 kg/ha was evaluated on the competition between rice and barnyard grass (echinochloa crus-galli) in a split plot design with four replication. the interaction effec...
متن کاملEffects of water-saving irrigations on different rice cultivars (Oryza sativa L.) in field conditions
A more efficient water use system is needed for agriculture. This is more evidence for rice production with a higher water use for economical production. A large cultivar×water regime interaction exists for grain yield in rice. Therefore, information is required to adopt new rice cultivars with high yield potential under water-saving conditions. The objectives of this study were to analyze the ...
متن کاملevaluating inhibitory potential of rice cultivars (oryza sativa l.) root exudates on characteristics of barnyardgrass (echinochloa crus-galli) weed
this experiment was conducted to screening phenolic acids in root exudates of three rice cultivars (neda, taichung and sepidrood) by high performance liquid chromatography (hplc) method and to evaluate allelopathic potential of these cultivars on growth characteristics of barnyardgrass weed. the experiment was arranged in factorial based on completely randomized design with four replications in...
متن کاملHierarchical additive effects on heterosis in rice (Oryza sativa L.)
Exploitation of heterosis in crops has contributed greatly to improvement in global food and energy production. In spite of the pervasive importance of heterosis, a complete understanding of its mechanisms has remained elusive. In this study, a small test-crossed rice population was constructed to investigate the formation mechanism of heterosis for 13 traits. The results of the relative mid-pa...
متن کاملSeed Germination Ecology of Echinochloa glabrescens and Its Implication for Management in Rice (Oryza sativa L.)
Echinochloa glabrescens is a C4 grass weed that is very competitive with rice when left uncontrolled. The competitive ability of weeds is intensified in direct-seeded rice production systems. A better understanding is needed of factors affecting weed seed germination, which can be used as a component of integrated weed management in direct-seeded rice. This study was conducted to determine the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Agricultural Science
سال: 2015
ISSN: 1916-9760,1916-9752
DOI: 10.5539/jas.v7n10p129